Rolling screen.



G. BAUER.

ROLLING SCREEN.'

APPLIGATION FILED SEPT. s, 190s.

930,923. Patented Aug. 10, 1909.

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li@ I lL--lL-/S Fam Mail C. BAUER. ROLLING SCREEN.

APPLICATION FILED SEPT. s, 190s.

Patented Aug. 10, 1909.

INVENTOR WHW CONRAD BAUER, OF PITTSBURG, PENNSYLVANIA.

PATENT OFFICE.

ROLLING SCREEN. f.

Specification of Letters Patent.

Patented Aug. 10, 1909.

Application filed September 8, 19408. Serial No. 451,989.I

To all 'whom it may concern.'

Be it known that I, CONRAD BAUER, of Pittsburg, in the county ofAllegheny and State of Pennsylvania, have invented a certain new anduseful Im rovement in Rolling Screens, of which the following is afull,clear and exact description, reference being had to theaccompanying drawings, forming .part of this specication, in which-Figure 1 is a vertical sectional'view ofy a window provided with myimprovement; Fig. 2 is an enlarged vertical sectional view illustratingthe o erating mechansim, and Figs. 3 and 4 are etailed views of aportion of a screen to be hereirgifter referred to.

My invention relates to an improvement in rolling screens and I haveshown it a plied to a shutter screen in combination wit a fly screen fora window, although it may be used in like manner in connectiony withother flexible screens for doorways and other openings.

I will now describe my invention so that others skilled in the art towhich it appertains may understand and construct the same.

In describing my invention, the reference numeral 2 illustrates a windowframe which is rovided with the usual sashes and at each si e of theframe, secured to the upright portions thereof are the'verticalguideways 3 in which are adapted to travel, the screens 4 and 5 carriedby the` rollers 6 and 7 at the top of the window frame. Theouterscreen4, which is carried by the roller 6 is composed of a series oftransverse slats 8 which are hinged together by means of tapes 9 whichare threaded `through the centrally disposed openings 10 of each sla't.These slats are provided with space pieces 11 which fit between andconform to the shape of the adj acent edges of the'slats. The purposeofthese space pieces is to admit light and air and `to a so preventrubbing. and friction of the slats during the rolling operation of thescreen. The inner ily-screen 5 carried by the roller 7 may be fbrmed ofany suitable material, such as wire netting and may be provided with anend weight as indicated by the reference numeral 12 for the'purpose ofkeeping the screen in a taut or stretched conditlon.

The rollers 6 and 7. at the top of the window-frame are journaled atoneI en d in the standard 13 and are rovided each with a gear wheel 14adapte( to mesh with the intermediate pinion 15 which in turn meshes.

' with the inion 16 carried lby the journal of 'the sproc et wheel 17The pinion 15 is` journaled on the end ofthe lever arm 18 l which isloosely mounted on the journal of the operating sprocket 17. Theopposite end of the arm 1-8 is provided with an operating rod 19 whichprojects down along the inside 'of the casing of the window andterminates in the outwardly projectinghandle 20. By means of the rod 19the lever arm 18 is caused to be shifted so as to bring the pinion 15alternately into ymesh with either of the gearwheels 14, according as itmay be desired to roll or unroll the outer or inner screen.

Carried by the lever arm 18 are the locking fingers 21 and 22 providedwith teeth 23. These Alockingiingers are adapted to alternatel' engage.with the teeth of the gear-` Wh'ee s 14 so as to hold one of therollers 6 and l 7 against rotation While the 'other is being operated.

When it is desired to operate the outer screen,'the lever arm 18iscaused to be shifted so as' 13o-bring' the operating pinion 15 into meshwith the upper gear-wheel 14 the .tooth carried by the lockin finger 21engagino` with the teeth of the lower gear-wheel an holding the innerscreen roller against rotation. When it is desired to bring the innerscreen into operative connection Awith the ,winding mechanism the leverarm 18 is caused to be shifted so as to disengage the A locking finger21 from the lower gear-wheelv 14 and to simultaneously bring theoperating pinion 15 into engagement with the lower ear-wheel 14 and thelocking finger 22 into ocking engagement with the upper gearwheel 14carried by the roller 6. The sprocket wheel 17 is operated by thesprocket c ain 24 which passes over the 'guide rollers 25 yat the top ofthe Window frame and the guide roller 26 at the bottom of thewindowframe.- By pulling on the sprocket chain, theinner or outerscreen, according to the connection of the pinion 15, may be raised orlowered.

, It will be apparent to those skilled inthe artV that many changes maybe made in the construction of the mechanism without departing from thes irit of my invention.

My invention.A w1 l be appreciatedby those skilled in lthe art. Thescreen is simple, strong and durable and by means of its compactness maybe readily applied to a window casing of/ordinary construction.

Having thus described my invention, what I claim and desire to secure byLetters Patent is 1l In a screen, the combination of a pluralityofrollers, screens adapted to be Wound thereon, gear-Wheels carried by therollers, a shiftable actuating device intermediate the gear-wheels, andmeans for bringing the said yactuating device into engagement With anyone of the gearing-Wheels.

2. A window screen including in combination an inner and an outerscreen, rollers on which said screens are adapted to be Wound,

gear-Wheels carried by the said rollers, an intermediate drive gear anddevices for bringing` the intermediate drive gear alternately into meshwith the roller gear-Wheels.

3. A Window screen including in combination an inner and an outerscreen, rollers on` which said screens are adapted to be wound,

gear-Wheels carried 'by the said rollers,`shiftable actuating andlocking means intermediate the roller gear Wheels, `and devicestorsimultaneously bringing the actuating device into Aoperativeengagement with one of the roller gear-wheels and the locking deviceinto engagement With the other gear wheel.

4. vA Window screen, including in combinaand means for bringing the saidactuating means alternately into operative connection With said rollers.

5. A window screen including in combination an inner and an outerscreen, rollers on which said screens are adapted to be Wound,drive-Wheels carried by the said'rollers, an intermediate drive-Wheel,and means for bringing the intermediate drive wheel alternately intoengagement with the roller drive-Wheels.

6. A Window-screen, including in combination an inner and an outerscreen, rollers on which said screens are adapted to be wound, actuatingmeans intermediate the said rollers, locking means intermediate the saidrollers,

-and means for simultaneously bringing the actuating means intooperative connection with one of the rollers and the locking means intoconnection with the other roller.

In testimony whereof, I have hereunto set my hand.

CONRAD BAUER. Witnesses:

M. A. BARTH, M. ARTHUR KELLER.

